Finding the Fourth Proportional to 12,058.88, 18,088.15 and 7,316.17

Step by Step Solution

1. Step 1: Write the proportion equation
   12,058.88 : 18,088.15 = 7,316.17 : x
2. Step 2: Convert to fraction form
   12,058.88/18,088.15 = 7,316.17/x
3. Step 3: Cross multiply
   12,058.88x = 18,088.15 × 7,316.17
4. Step 4: Simplify right side
   12,058.88x = 132,335,980.39
5. Step 5: Solve for x
   x = 132,335,980.39/12,058.88
6. Step 6: Final answer
   x = 10,974.15